How can create touch restart button below code?

Could anyone support me?in below code,if statements doesnot works,could you find reason?

 function OnGUI(){
 
 
 if(Input.touchCount>0){
 
 if (GUI.Button(Rect(Screen.width/1.12, 0, Screen.width/8, Screen.height/8),"restart")){
 
 Application.LoadLevel(1);
 }
 }
 }